import datetime
from urllib import parse

from django.contrib.auth.models import User
from django.contrib.gis.db import models
from django.db import connection
from django.template.defaultfilters import slugify
from django.utils.translation import ugettext_lazy as _
from django_countries.fields import CountryField
from django_extensions.db.fields import AutoSlugField
from multiselectfield import MultiSelectField
from phonenumber_field.modelfields import PhoneNumberField

from . import validators


class CaseStudyDraft(models.Model):
    author = models.ForeignKey(User, on_delete=models.CASCADE)

    created = models.DateTimeField(auto_now_add=True)

    data = models.TextField()

    def __str__(self):
        return "{0.author.username}, {0.created:%Y-%m-%d %H:%M}".format(self)


class SpatialRefSys(connection.ops.spatial_ref_sys()):
    def __str__(self):
        return self.__unicode__()

    def __unicode__(self):
        return "{0.auth_name}:{0.auth_srid} {0.name}".format(self)

    class Meta:
        proxy = True
        verbose_name = "spatial reference system"


class CaseStudyQuerySet(models.QuerySet):
    def approved(self):
        return self.filter(approved=True)


class CaseStudy(models.Model):
    """Model for case studies submitted to the Ojuso Platform"""

    approved = models.BooleanField(default=False)

    # Choice lists for drop-downs
    POSITIVE_NEGATIVE_CHOICES = (
        ("P", _("There is/was an organising process in favour of the project")),
        ("N", _("There is/was an organising process against the project")),
        ("X", _("There is/was no organising process")),
        ("U", _("Unsure/unknown")),
    )

    LAND_OWNERSHIP_CHOICES = (
        ("PRI", _("Private land")),
        ("PUB", _("Public/state land")),
        ("COM", _("Community/communal/customary land")),
        ("CON", _("Contested/in conflict")),
        ("OTH", _("Other")),
    )

    LOCATION_CONTEXT_CHOICES = (
        ("RUR", _("Rural")),
        ("URB", _("Urban")),
        ("MIX", _("Mixed")),
    )

    TYPE_OF_ECOSYSTEM_CHOICES = (
        ("MARINE", _("Marine (e.g. ocean, sea)")),
        ("FRESH", _("Freshwater (e.g. river, lake)")),
        ("FOREST", _("Forest/jungle")),
        ("AGRI", _("Agricultural land")),
        ("GRASS", _("Grassland")),
        ("DESERT", _("Desert (tundra, ice or sand)")),
        ("WETLND", _("Wetland (marsh, mangrove, peat Soil)")),
        ("URBAN", _("Urban")),
    )

    AFFECTED_COMMUNITIES_CHOICES = (
        ("INDIG", _("Indigenous people(s)")),
        ("AFRO", _("Afro-descendants")),
        ("MIG", _("Migrants")),
        ("REF", _("Refugees")),
        ("OTHER", _("Other communities or identities")),
    )

    PROJECT_STATUS_CHOICES = (
        ("INIT", _("Initial/conceptual")),
        ("PROJCD", _("In planning and design")),
        ("FAIL", _("Failed")),
        ("UCONST", _("Under construction")),
        ("EXSTNG", _("In operation")),
        ("DECOMM", _("Undergoing decommissioning")),
        ("END", _("Decommissioned")),
    )

    FINANCIAL_INSTITUTIONS = (
        ("AfDB", _("African Development Bank (AfDB)")),
        ("BADEA", _("Arab Bank for Economic Development in Africa (BADEA)")),
        ("ADB", _("Asian Development Bank (ADB)")),
        ("AIIB", _("Asian Infrastructure Investment Bank (AIIB)")),
        ("BSTDB", _("Black Sea Trade and Development Bank (BSTDB)")),
        (
            "CAF",
            _(
                "Corporacion Andina de Fomento / Development Bank of Latin America (CAF)"
            ),
        ),
        ("CDB", _("Caribbean Development Bank (CDB)")),
        ("CABEI", _("Central American Bank for Economic Integration (CABEI)")),
        ("EADB", _("East African Development Bank (EADB)")),
        (
            "ETDB",
            _("Economic Cooperation Organization Trade and Development Bank (ETDB)"),
        ),
        ("EDB", _("Eurasian Development Bank (EDB)")),
        ("EBRD", _("European Bank for Reconstruction and Development (EBRD)")),
        ("EC", _("European Commission (EC)")),
        ("EIB", _("European Investment Bank (EIB)")),
        ("IADB", _("Inter-American Development Bank Group (IDB, IADB)")),
        ("IFAD", _("International Fund for Agricultural Development (IFAD)")),
        ("IIB", _("International Investment Bank (IIB)")),
        ("IsDB", _("Islamic Development Bank (IsDB)")),
        (
            "FMO",
            _(
                "Nederlandse Financieringsmaatschappij voor Ontwikkelingslanden NV"
                " (Netherlands Development Finance Company, FMO)"
            ),
        ),
        ("NDB", _("New Development Bank (NDB) (formerly BRICS Development Bank)")),
        ("NDF", _("The Nordic Development Fund")),
        ("NIB", _("Nordic Investment Bank (NIB)")),
        ("OFID", _("OPEC Fund for International Development (OFID)")),
        ("BOAD", _("West African Development Bank (BOAD)")),
        ("WB", _("World Bank")),
    )

    SECTOR_CHOICES = (
        ("RN", _("Renewable energy generation project")),
        ("PG", _("Energy networks")),
        ("ST", _("Energy storage facilities")),
        ("SM", _("Mining related to the renewable energy economy")),
        ("MA", _("Manufacturing and/or processing of equipment")),
    )

    GENERATION_TYPE_CHOICES = (
        ("POW", _("Electricity")),
        ("HOT", _("Heat/Cold")),
        ("CHP", _("Combined Heat/Cold and Power (CHP, CCP or CCHP)")),
    )

    GENERATION_TECHNOLOGY_CHOICES = (
        ("BIO", _("Bio-energy")),
        ("GEOT", _("Geothermal electricity")),
        (
            _("Hydro"),
            (
                ("uHYD", _("Micro hydro (<100kW)")),
                ("SHYD", _("Small-scale hydro (100kW-1MW)")),
                ("MHYD", _("Medium-scale hydro (1-30MW)")),
                (
                    "LHYD",
                    _("Large-scale hydro (>30MW - often not considered renewable)"),
                ),
            ),
        ),
        (
            _("Marine"),
            (
                ("WAVE", _("Wave")),
                ("TSTR", _("Tidal stream")),
                ("TBAR", _("Tidal barrage/lagoon")),
                ("TOTH", _("Other")),
            ),
        ),
        (
            _("Solar"),
            (
                ("SSPV", _("Small-scale photovoltaic (<500kW)")),
                ("LSPV", _("Large-scale photovoltaic (>500kW)")),
                ("CSP", _("Solar power tower")),
                ("PARA", _("Parabolic trough (open or enclosed)")),
                ("FRES", _("Fresnel reflector")),
                ("STIR", _("Dish Stirling")),
            ),
        ),
        (
            _("Wind"),
            (
                ("SSWE", _("Small-scale wind (<500kW)")),
                ("LSWE", _("Large-scale wind (>500kW)")),
            ),
        ),
        ("OTHR", _("Other")),
    )

    POWER_TECHNOLOGY_CHOICES = (
        ("PT", _("Electrical power transmission/distribution")),
        ("HN", _("Heat networks")),
        ("OT", _("Other")),
    )

    TYPE_OF_EXTRACTION_CHOICES = (
        ("SUR", _("Surface (open pit/open cast/open cut mining)")),
        ("SUB", _("Sub-surface (underground mining)")),
        ("SEA", _("Seabed mining")),
        ("URB", _("Urban mining/recycling")),
    )

    MINERAL_COMMODITY_CHOICES = (
        ("ALU", _("Aluminium (Bauxite)")),
        ("ARS", _("Arsenic")),
        ("BER", _("Beryllium")),
        ("CAD", _("Cadmium")),
        ("CHR", _("Chromium")),
        ("COK", _("Coking coal (for steel)")),
        ("COP", _("Copper")),
        ("GAL", _("Gallium")),
        ("GER", _("Germanium")),
        ("GLD", _("Gold")),
        (
            "HRE",
            _(
                "Heavy rare earth elements (gadolinium, terbium, dysprosium, holmium,"
                " erbium, thulium, ytterbium, lutetium, yttrium, scandium)"
            ),
        ),
        ("IRN", _("Iron")),
        (
            "LRE",
            _(
                "Light rare earth elements (lanthanum, cerium, praseodymium, neodymium,"
                " promethium, samarium, europium)"
            ),
        ),
        ("LED", _("Lead")),
        ("LIT", _("Lithium")),
        ("MAN", _("Manganese")),
        ("MER", _("Mercury")),
        ("MOL", _("Molybdenum")),
        ("NIC", _("Nickel")),
        ("NIO", _("Niobium")),
        (
            "PGM",
            _(
                "Platinum group metals (ruthenium, rhodium, palladium, osmium,"
                " iridium, and platinum)"
            ),
        ),
        ("RHE", _("Rhenium")),
        ("SIL", _("Silicon")),
        ("SIV", _("Silver")),
        ("TAN", _("Tantalum")),
        ("TEL", _("Tellurium")),
        ("THA", _("Thallium")),
        ("TIN", _("Tin")),
        ("TIT", _("Titanium")),
        ("TUN", _("Tungsten")),
        ("VAN", _("Vanadium")),
        ("ZNC", _("Zinc")),
        ("OTR", _("Other")),
    )

    USE_IN_ENERGY_ECONOMY_CHOICES = (
        ("CPV", _("Concentrated solar power (CSP) tower")),
        ("EPT", _("Electrical power transmission/distribution infrastructure")),
        ("ESS", _("Energy storage")),
        ("GGM", _("Geothermal")),
        ("HGM", _("Hydropower")),
        ("HNT", _("Heat networks")),
        ("SPM", _("Solar photovoltaic")),
        ("STM", _("Solar thermal systems")),
        ("WTM", _("Wind power")),
        ("ESS", _("Don't know")),
        ("OTR", _("Other")),
    )

    MANUFACTURING_TYPE_CHOICES = (
        ("GENERATE", _("Manufacturing of renewable energy generation equipment")),
        ("TRANSSTORE", _("Manufacturing of energy transmission or storage equipment")),
        ("RECYCLE", _("Recycling/reusing equipment or raw materials")),
        ("DISPOSAL", _("Disposal of equipment")),
        ("OTHER", _("Other")),
    )

    MANUFACTURING_RELATED_CHOICES = (
        ("PV", _("Solar PV")),
        ("CSP", _("Concentrated solar power (CSP)")),
        ("WIND", _("Wind power")),
        ("HYDRO", _("Hydropower")),
        ("GEO", _("Geothermal")),
        ("TRANSMIT", _("Electrical power transmission/distribution infrastructure")),
        ("STORE", _("Energy storage")),
        ("HEAT", _("Heat networks")),
        ("OTHER", _("Other")),
        ("IDK", _("Unknown")),
    )

    MANUFACTURING_FACTORS_CHOICES = (
        ("LAND", _("Land use")),
        ("LABOR", _("Labor rights")),
        ("ENVIRO", _("Environmental factors")),
        ("LIFECYCLE", _("Lifecycle management")),
        ("OWN", _("Ownership")),
        ("OTHER", _("Other(s)")),
    )

    POSITIVE_CASE_TYPE_CHOICES = (
        ("CREP", _("Community project (co-)owned by individuals")),
        (
            "EACP",
            _(
                "Community project owned by not-for-profit organizations and/or serving"
                " the public interest"
            ),
        ),
        ("PSEP", _("Public/state (federal, state, municipal) project")),
        ("CORS", _("Circular economy project / Reuse / Recycling")),
    )

    NEGATIVE_CASE_REASONS_CHOICES = (
        ("VOLR", _("Violation of land rights")),
        (
            "VOHR",
            _(
                "Violation of fundamental human rights, indigenous rights and/or other"
                " collective rights"
            ),
        ),
        (
            "EIMP",
            _(
                "Environmental impacts (severe impacts on ecosystems / violation of laws,"
                " plans or programs of environmental conservation, etc.)"
            ),
        ),
        (
            "NCUL",
            _(
                "Negative cultural impacts (erosion/destruction of bio-cultural heritage,"
                " impacts on sacred land, etc.)"
            ),
        ),
        (
            "AGGR",
            _(
                "Aggression/threats to community members opposed to the project,"
                " collaboration with organized crime, etc."
            ),
        ),
        ("ALAB", _("Abusive labour practices")),
        (
            "CRUP",
            _(
                "Corruption and/or irregular permitting or contracting, conflicts of"
                " interest, etc."
            ),
        ),
    )

    # Dynamically generate a list of choices 40 years prior and after the current year.
    YEAR_CHOICES = [
        (r, r)
        for r in range(
            (datetime.datetime.now().year - 40), (datetime.datetime.now().year + 41)
        )
    ]

    ##
    # Meta Fields
    ##

    # User who submitted case study
    author = models.ForeignKey(
        User, on_delete=models.SET_NULL, blank=True, null=True, editable=False
    )

    # Date and time of submission
    date_created = models.DateTimeField(auto_now_add=True, null=False)

    # Slug derived from entry_name, used in urls for SEO
    slug = AutoSlugField(populate_from=["entry_name"], editable=False)

    # Language this case study is written in
    language = models.CharField(max_length=16, blank=True)

    # Long or short case study?
    form_type = models.CharField(max_length=16, blank=True)

    ##
    # Territory info
    ##

    location = models.PointField(verbose_name=_("Project location"))

    shapefiles_label = _(
        "Do you have geographic information files about the territory impacted by"
        " this project?"
    )

    shapefiles_help_text = _(
        "For example, of the limits of the land within which a project is taking"
        " place, or of sites of particular importance. You can upload data in"
        " different formats (ESRI Shapefiles with file extensions like .cpg, .dbf,"
        " .prj, .qpj, .shp, .shx., or GeoPackage gpkg, GeoJSON, KML, GML, etc.)."
        " Write to database@ojuso.org if you need help."
    )

    shapefiles = models.ManyToManyField(
        "files.File",
        related_name="shapefile_for",
        verbose_name=shapefiles_label,
        help_text=shapefiles_help_text,
        blank=True,
    )

    coordinate_reference_system = models.ForeignKey(
        SpatialRefSys, null=True, blank=True, default=4326, on_delete=models.PROTECT
    )

    name_of_territory_or_area = models.CharField(
        verbose_name=_("Name of territory or area"), max_length=512, blank=True
    )

    ##
    # First Screen - Basic information
    ##

    # 1.1
    entry_name = models.CharField(
        verbose_name=_("Project name"),
        help_text=_(
            "Please write the local name, followed by any translated name if necessary."
        ),
        max_length=128,
    )

    # 1.4
    country = CountryField(
        verbose_name=_("Country"),
        help_text=_("Please select the country of the project."),
    )

    # 1.5.1
    area_of_land = models.IntegerField(
        verbose_name=_("Approximate land area"),
        help_text=_("The area of land covered by the project (km²)"),
    )

    # 1.5.2
    land_ownership = models.CharField(
        verbose_name=_("Land ownership/tenure"),
        help_text=_("What type of ownership/tenure does the land fall under?"),
        max_length=3,
        choices=LAND_OWNERSHIP_CHOICES,
    )

    # 1.5.3
    land_ownership_details = models.TextField(
        verbose_name=_("Land ownership/tenure details"),
        help_text=_(
            "<p class='text-muted'>Please specify details about land ownership,"
            " including conflicting claims, unrecognized customary rights, "
            " conflicts around land lease or purchase contracts, etc."
            ""
            "<p class='text-muted'>We understand this is a difficult question, so"
            " please try to provide <b>just the information you know</b>.</p>"
        ),
        max_length=256,
        blank=True,
    )

    # 1.5.4
    location_context = models.CharField(
        verbose_name=_("Location"),
        help_text=_(
            "Please select the context that is most applicable to this case study."
        ),
        max_length=3,
        choices=LOCATION_CONTEXT_CHOICES,
    )

    # 1.5.5
    type_of_ecosystem = MultiSelectField(
        verbose_name=_("Type(s) of ecosystem"),
        max_length=56,
        choices=TYPE_OF_ECOSYSTEM_CHOICES,
        blank=True,
    )

    # 1.5.5.3
    describe_ecosystem = models.TextField(
        verbose_name=_("Please describe the ecosystem.")
    )

    affected_communities = MultiSelectField(
        verbose_name=_("Communities or identities present in the project area"),
        max_length=50,
        choices=AFFECTED_COMMUNITIES_CHOICES,
        blank=True,
    )

    people_affected_other = models.TextField(
        verbose_name=_("Communities or identities – further detail"),
        help_text=_(
            "Please describe further the communities or identities present in the project area."
        ),
        blank=True,
    )

    # 1.6
    project_status = models.CharField(
        verbose_name=_("Status of project"),
        max_length=6,
        choices=PROJECT_STATUS_CHOICES,
    )

    # 1.7
    start_year = models.IntegerField(
        verbose_name=_("Construction start year"),
        help_text=_(
            "Please select the year project construction began."
            "If the project is not yet in construction, select the assumed"
            " start year as detailed in company information or media."
        ),
        choices=YEAR_CHOICES,
        blank=True,
        null=True,
    )

    # 1.8
    completion_year = models.IntegerField(
        verbose_name=_("Operation start year"),
        help_text=_(
            "Please select the year the project's operation and maintenance (O&M) phase"
            " began. If the project is not yet in operation, select the year operation "
            " is expected to begin as detailed in company information or media."
        ),
        choices=YEAR_CHOICES,
        default=None,
        null=True,
        blank=True,
    )

    # 1.9
    synopsis = models.TextField(
        verbose_name=_("Project synopsis"),
        help_text=_("Please briefly summarise the project.  (Maximum 500 characters.)"),
        max_length=500,
    )

    # 1.10
    full_description = models.TextField(
        verbose_name=_("Full description"),
        help_text=_(
            "Please describe the project in full. Separate paragraphs with two"
            " new lines. Please add as much detail as you feel is necessary"
            " here."
        ),
    )

    # 1.11
    project_owners = models.TextField(
        verbose_name=_("Project owners"),
        help_text=_(
            "Please list companies or organisations that own the project."
            " Write each name in a new line."
        ),
        blank=True,
    )

    consultants_contractors = models.TextField(
        verbose_name=_("Consultants and contractors"),
        help_text=_(
            "Please list consultants, planners or organisations that are doing"
            " the planning, construction, operation or maintenance work relating"
            " to the project and/or facilities. Separate each with a new line."
        ),
        blank=True,
    )

    # 1.12
    shareholders = models.TextField(
        verbose_name=_("Shareholders of the project owners"),
        help_text=_(
            "List the shareholders of the company/companies that own the"
            " project, if you have this information. Separate with a new line."
        ),
        blank=True,
    )

    # 1.13.1
    financial_institutions = MultiSelectField(
        verbose_name=_("Financial institutions"),
        help_text=_(
            "Please select any financial institutions (public or private) that"
            " have, or are considering extending loans or guarantees to the"
            " project."
        ),
        choices=FINANCIAL_INSTITUTIONS,
        blank=True,
    )

    # 1.13.2
    financial_institutions_other = models.TextField(
        verbose_name=_("Financial institutions – other"),
        help_text=_(
            "Please list any other financial institutions not listed above."
            " Separate with a new line."
        ),
        blank=True,
    )

    # 1.15.1, 1.15.2, 1.15.3
    images = models.ManyToManyField(
        "files.ImageFile",
        related_name="image_for",
        verbose_name=_("Images"),
        blank=True,
    )

    # 1.16.1
    video = models.URLField(
        verbose_name=_("Video URL"),
        help_text=_(
            "Copy the URL to a YouTube or Vimeo video that relates to the case study."
        ),
        max_length=80,
        validators=[validators.YouTubeOrVimeoValidator()],
        blank=True,
    )

    # 1.16.2
    video_caption = models.CharField(
        verbose_name=_("Video caption"), max_length=240, blank=True
    )

    # 1.16.3
    video_credit = models.CharField(
        verbose_name=_("Video credit(s)"), max_length=240, blank=True
    )

    # 1.17.1
    media_coverage_mainstream = models.TextField(
        verbose_name=_("Links to media reports"),
        help_text=_("Please provide any links to mainstream media coverage."),
        blank=True,
    )

    # 1.17.2
    media_coverage_independent = models.TextField(
        verbose_name=_("Independent grassroots reports"),
        help_text=_(
            "Please provide any links to grassroots/independent media coverage."
        ),
        blank=True,
    )

    # 1.18.1
    community_voices = models.TextField(
        verbose_name=_("Community Voices"),
        help_text=_(
            "Please add any direct quotes from members of the community that relate"
            " to this project."
        ),
        blank=True,
    )

    # 1.18.2
    direct_comms = models.TextField(
        verbose_name=_("Reports of direct communications"),
        help_text=_(
            "Please add any reports of direct communication between community members"
            " and representatives of developers/companies/investors. If you have files"
            " to upload, you can do this in 'other documents' on the 'uploads' tab."
        ),
        blank=True,
    )

    # 1.18.3
    social_media_links = models.TextField(
        verbose_name=_("Social media links"),
        help_text=_(
            "Please add any links to social media accounts directly relating"
            " to the project."
        ),
        max_length=500,
        blank=True,
    )

    ##
    # Second Screen - Technical and economic analysis
    ##

    sector_of_economy = models.CharField(
        verbose_name=_("Sector of renewable energy economy"),
        max_length=3,
        choices=SECTOR_CHOICES,
    )

    energy_details = models.CharField(
        verbose_name=_("Technology type"),
        help_text=_(
            "Please provide more information about the type of technology this case study focuses on."
        ),
        max_length=200,
        blank=True,
    )

    # -- Energy generation project --

    generation_type = models.CharField(
        verbose_name=_("What kind of energy is generated?"),
        max_length=4,
        choices=GENERATION_TYPE_CHOICES,
        blank=True,
    )

    generation_technology = models.CharField(
        verbose_name=_("Generation technology"),
        help_text=_(
            "Please select the type of renewable energy generation that most"
            " applies to this case study."
        ),
        max_length=4,
        choices=GENERATION_TECHNOLOGY_CHOICES,
        blank=True,
    )

    # Should be filled in if generation_technology was answered as bio-energy
    biomass_detail = models.CharField(
        verbose_name=_("Bio-energy feedstock"),
        help_text=_(
            "<div class='text-muted'>"
            "<p>Please describe the source of the fuel and how it is processed/used."
            " Please consider:</p>\n"
            "<ul>\n"
            "<li>where the fuel came from e.g. corn, forestry, algae,"
            " commercial food waste, landfill gas, sewage, livestock farm, etc.</li>\n"
            "<li>how it is processed e.g. direct-fired, co-firing with other renewable"
            " input, gasification, bacterial decomposition (anaerobic digestion, AD), "
            " pyrolysis, artificial photosynthesis, fuel cell, etc.</li>\n"
            "</ul>\n"
            "<p>We do not expect users to know this information, but if you do "
            " it may be useful to give a fuller picture.</p>"
            "</div>"
        ),
        max_length=200,
        blank=True,
    )

    # 1.14
    energy_customers = models.TextField(
        verbose_name=_("Energy service consumers/off-takers"),
        help_text=_(
            "Please list the customers that buy energy from the project, e.g. the"
            " national grid provider, or private companies. Also mention whether"
            " credits are being sold in the carbon markets. Separate with a new line."
        ),
        blank=True,
    )

    # 2.1.2
    total_generation_capacity = models.PositiveIntegerField(
        verbose_name=_("Total generation capacity (kW)"), blank=True, null=True
    )

    # 2.1.4
    total_investment = models.IntegerField(
        verbose_name=_("Total investment (in USD)"),
        help_text=_(
            "Please enter the approximate total investment for the project in"
            " United State Dollars (USD)."
        ),
        blank=True,
        null=True,
    )

    # 2.2 - Power Grids / Energy Storage
    # 2.2.1
    power_technology = models.CharField(
        verbose_name=_("Power technology"),
        max_length=2,
        choices=POWER_TECHNOLOGY_CHOICES,
        blank=True,
    )

    # 2.2.1.4
    power_technology_other = models.CharField(
        verbose_name=_("Further information about power technology"),
        max_length=128,
        blank=True,
    )

    energy_storage_capacity = models.DecimalField(
        verbose_name=_("Total storage capacity (kWh)"),
        max_digits=20,
        decimal_places=3,
        blank=True,
        null=True,
    )

    energy_transmission_capacity = models.DecimalField(
        verbose_name=_("Total transmission or distribution capacity (kW)"),
        max_digits=20,
        decimal_places=3,
        blank=True,
        null=True,
    )

    # TODO: Auto-completion based on previous entries so we can query case-studies with the same answer.
    contractor_or_supplier_of_technology = models.TextField(
        verbose_name=_("Supplier of technology"),
        help_text=_(
            "Please list companies that supply the energy generation equipment"
            " - e.g. Siemens Gamesa, GE, Alstom, Vestas, Hanwha Q CELLS,"
            " Mitsubishi, First Solar, Jinko Solar, Trina Solar,"
            " Suzlon Energy, Statkraft, Shanghai Electric,"
            " Ballard Power Systems, Panasonic, etc."
        ),
        blank=True,
    )

    # 2.2.5
    additional_technical_details = models.TextField(
        verbose_name=_("Additional technical or economic details"),
        help_text=_(
            "Please add any additional details that may help to explain the technical"
            " and economic aspects of this case study."
        ),
        blank=True,
    )

    ##
    # Mining
    ##

    minerals_or_commodities = models.CharField(
        verbose_name=_("Primary mineral mined"),
        help_text=_("What mineral commodity is primarily mined here?"),
        max_length=3,
        choices=MINERAL_COMMODITY_CHOICES,
        blank=True,
    )

    minerals_or_commodities_other = models.TextField(
        verbose_name=_("Other mineral commodities"),
        help_text=_(
            "Please enter any mineral commodities not in the list."
            " Separate each with a new line."
        ),
        blank=True,
    )

    use_in_energy_economy = MultiSelectField(
        verbose_name=_("Potential use in renewable energy economy"),
        max_length=128,
        choices=USE_IN_ENERGY_ECONOMY_CHOICES,
        blank=True,
    )

    use_in_energy_economy_other = models.CharField(
        verbose_name=_("Other"), max_length=128, blank=True
    )

    project_life_span = models.CharField(
        verbose_name=_("Project life span"),
        help_text=_("e.g. 12 years of production, 15 years overall"),
        max_length=200,
        blank=True,
    )

    size_of_concessions = models.CharField(
        verbose_name=_("Size of concessions (land/marine area)"),
        help_text=_(
            "Please describe the size of concession(s) granted to company/companies"
            " (e.g. 'one concession of 2,300 hectares (23km²)')"
        ),
        max_length=200,
        blank=True,
    )

    projected_production_of_commodities = models.CharField(
        verbose_name=_("Estimated production of key commodities"),
        help_text=_(
            "Please describe the projected production of commodities per annum and"
            " overall.<br>\n"
            'For example, "40 million tonnes of iron ore per year",'
            ' "200 million tonnes over 5 year life of mine"."'
        ),
        max_length=256,
        blank=True,
    )

    type_of_extraction = models.CharField(
        verbose_name=_("Type of extraction"),
        max_length=3,
        choices=TYPE_OF_EXTRACTION_CHOICES,
        blank=True,
    )

    associated_infrastructure = models.CharField(
        verbose_name=_("Associated infrastructure in the locality"),
        help_text=_(
            "Please list any associated infrastructure in the locality"
            " (e.g. tailings dams / mine waste storage and treatment facilities;"
            " ore processing facilities; smelting facilities;"
            " hydroelectric dams / energy infrastructure;"
            " transport infrastructure e.g. roads or rail)."
        ),
        max_length=256,
        blank=True,
    )

    # -- Manufacturing --

    manufacturing_type = models.CharField(
        verbose_name=_("Which of the following options best describes this case?"),
        max_length=16,
        choices=MANUFACTURING_TYPE_CHOICES,
        blank=True,
    )

    manufacturing_description = models.TextField(
        verbose_name=_("Description"),
        help_text=_(
            "Please briefly describe manufacturing process and components/outputs."
            " (less than 500 characters)."
        ),
        max_length=500,
        blank=True,
    )

    manufacturing_related_tech = MultiSelectField(
        verbose_name=_("What technology is this case related to?"),
        max_length=128,
        choices=MANUFACTURING_RELATED_CHOICES,
        blank=True,
    )

    manufacturing_factors = MultiSelectField(
        verbose_name=_(
            "Please choose the factors that make this case remarkable, "
            "in a positive or negative way."
        ),
        max_length=128,
        choices=MANUFACTURING_FACTORS_CHOICES,
        blank=True,
    )

    manufacturing_factors_description = models.TextField(
        verbose_name=_("Please describe these factors."), blank=True
    )

    manufacturing_ownership = models.TextField(
        verbose_name=_(
            "Describe the ownership structure of the project and its relation with the local community."
        ),
        blank=True,
    )

    ##
    # Socio-economic analysis
    ##

    positive_or_negative = models.CharField(
        verbose_name=_(
            "What is the relationship of local community organization(s) to this project?"
        ),
        max_length=1,
        choices=POSITIVE_NEGATIVE_CHOICES,
    )

    positive_case_type = MultiSelectField(
        verbose_name=_("What kind of case is this entry about?"),
        choices=POSITIVE_CASE_TYPE_CHOICES,
        max_length=32,
        blank=True,
    )

    negative_case_reasons = MultiSelectField(
        verbose_name=("What kind of case is this entry about?"),
        choices=NEGATIVE_CASE_REASONS_CHOICES,
        blank=True,
    )

    socioeconomic_benefits = models.TextField(
        verbose_name=_("Socio-economic impacts"), blank=True
    )

    negative_socioenvironmental_impacts = models.TextField(
        verbose_name=_(
            "Describe the socio-environmental impacts (positive and negative):"
        ),
        help_text=_(
            "Please provide a detailed description of the socio-environmental impacts"
            " (all relevant details, such as type of ecosystem, presence of any"
            " existing reserve in the area, biodiversity impacts, new protection of"
            " lands/waters, total geographic footprint of the project,"
            " tenure system affected in the case of land grabs, etc.)."
        ),
        blank=True,
    )

    isolated_or_widespread = models.TextField(
        verbose_name=_(
            "Is the project part of developments which are causing a cumulative effect?"
        ),
        help_text=_(
            "Is this an isolated project or are there similar projects in the same"
            " geographic area? If so, can you please describe them? Is there an"
            " analysis of cumulative or synergetic effects?"
        ),
        blank=True,
    )

    key_actors_involved = models.TextField(
        verbose_name=_("Key actors involved (individual/organisational)"), blank=True
    )

    project_status_detail = models.TextField(
        verbose_name=_("Current status of the case"),
        help_text=_(
            "Please describe the current situation and likely future scenarios."
        ),
        blank=True,
    )

    obstacles_and_hindrances = models.TextField(
        verbose_name=_("Current status of the organizing process around this case"),
        help_text=_(
            "Please describe the status of the organizing process, including the obstacles and hindrances faced."
        ),
        max_length=512,
        blank=True,
    )

    identified_partnerships = models.CharField(
        verbose_name=_("Identified partnerships"),
        help_text=_(
            "Are you, or the organizing process that you represent, looking for partnerships,"
            " or have any clearly identified need? If so, please describe and we will try"
            " to connect you to appropriate partners."
        ),
        max_length=256,
        blank=True,
    )

    # 3.2.1.9
    negative_case_reasons_other = models.CharField(
        verbose_name=_("Other reason for negative case"),
        help_text=_(
            "For negative impacts you need to focus on substantive impacts on vulnerable groups."
        ),
        max_length=512,
        blank=True,
    )

    # 3.2.4.1
    when_did_organising_start = models.CharField(
        verbose_name=_("When did local organising efforts begin?"),
        help_text=_(
            "Before the project started? During project implementation?"
            " After project implementation? Please describe in your own words."
        ),
        max_length=512,
        blank=True,
    )

    # 3.2.4.2
    who_has_been_involved = models.TextField(
        verbose_name=_(
            "Which communities, groups and organisations have been involved?"
        ),
        blank=True,
    )

    # 3.2.4.3
    participation_mechanisms = models.TextField(
        verbose_name=_("What mechanisms of participation have been used?"),
        help_text=_(
            "e.g. direct action, local referendums, legal cases,"
            " letters or petitions, etc."
        ),
        blank=True,
    )

    # 3.2.7
    wants_conversation_with_ojuso = models.BooleanField(
        verbose_name=_(
            "Would you like to have a conversation with the <b>ojuso</b> team?"
        ),
        help_text=_(
            "This would be a conversation about challenging or engaging related"
            " developers, companies and investors."
        ),
        default=False,
    )

    ##
    # Contact details
    ##

    contact_email = models.EmailField(verbose_name=_("Email address"), blank=True)

    contact_phone = PhoneNumberField(
        verbose_name=_("Phone number"),
        help_text=_('Please include the international prefix, beginning with "+".'),
        blank=True,
    )

    contact_website = models.URLField(verbose_name=_("Website"), blank=True)

    contact_twitter = models.CharField(
        verbose_name=_("Twitter username"), max_length=50, blank=True
    )

    contact_facebook = models.URLField(verbose_name=_("Facebook page"), blank=True)

    contact_other = models.TextField(
        verbose_name=_("Other contact details"), blank=True
    )

    ##
    # Uploads
    ##

    # 4.1
    official_project_documents = models.ManyToManyField(
        "files.File",
        related_name="official_project_document_for",
        verbose_name=_("Official project documents"),
        help_text=_(
            "Please attach any legal or official documents that relate to the project."
        ),
        blank=True,
    )

    # 4.2
    other_documents = models.ManyToManyField(
        "files.File",
        related_name="other_document_for",
        verbose_name=_("Other documents"),
        help_text=_("Please attach any other documents that relate to the project."),
        blank=True,
    )

    # 4.4
    shown_on_other_platforms = models.BooleanField(
        verbose_name=_("Is this case study shown on other platforms?"), default=True
    )

    # 4.4.1
    shown_on_other_platforms_detail = models.TextField(
        verbose_name=_("Shown on other platforms - Detail"),
        help_text=_("Please provide links to other places the case study appears."),
        blank=True,
    )

    objects = CaseStudyQuerySet.as_manager()

    def __str__(self):
        """The String representation of the case study. (Entry name with country name.)"""
        return "%s in %s" % (self.entry_name, self.country.name)

    def save(self, *args, **kwargs):
        """
        Override the save method to create a slug when the model is created.
        Slug is only created and never modified as we are basing our URLs on it and
        don't want it to change - ever.
        """
        if not self.pk:
            # Newly created object, so set slug
            self.slug = slugify(self.entry_name)

        super(CaseStudy, self).save(*args, **kwargs)

    def is_video_youtube(self):
        return self.video.count("youtube.com") > 0

    def get_youtube_id(self):
        """Gets the 11 character YouTube video ID from the video field."""
        return parse.parse_qs(parse.urlparse(self.video).query)["v"][0]

    def is_video_vimeo(self):
        return self.video.count("vimeo.com") > 0

    def get_vimeo_id(self):
        """Gets the 11 number video ID from the video field."""
        return parse.urlparse(self.video).path

    class Meta:
        verbose_name_plural = "case studies"


class PointOfInterestQuerySet(models.QuerySet):
    def approved(self):
        return self.filter(approved=True)


class PointOfInterest(models.Model):
    class Meta:
        verbose_name_plural = "points of interest"

    def __str__(self):
        return self.title

    objects = PointOfInterestQuerySet.as_manager()

    author = models.ForeignKey(
        User, models.SET_NULL, blank=True, null=True, editable=False
    )

    date_created = models.DateTimeField(auto_now_add=True, null=False)

    slug = AutoSlugField(populate_from=["title"], editable=False)

    approved = models.BooleanField(default=False)

    title = models.CharField(max_length=128)
    location = models.PointField()
    synopsis = models.TextField()
    link = models.URLField()