import gleam/dynamic/decode
import gleam/json
import gleam/list
import gleam/option.{type Option}
import models/construction.{type Construction}
import models/jump_gate.{type JumpGate}
import models/market.{type Market}
import models/ship_cargo.{type ShipCargo}
import models/ship_symbol.{type ShipSymbol}
import models/shipyard.{type Shipyard}
import models/system.{type System}
import models/system_symbol.{type SystemSymbol}
import models/trade_symbol.{type TradeSymbol}
import models/waypoint.{type Waypoint}
import models/waypoint_symbol.{type WaypointSymbol}
import models/waypoint_trait_symbol.{type WaypointTraitSymbol}
import models/waypoint_type.{type WaypointType}
import utils/api.{type ApiResponse, type PagedData}
import utils/auth.{type AgentToken, AgentAuth}

pub fn list_systems(
  token: AgentToken,
  page: Option(Int),
  limit: Option(Int),
) -> ApiResponse(PagedData(List(System))) {
  let request = api.get_page(AgentAuth(token), "/systems", page, limit)
  use response <- api.try_send(request)
  case response.status {
    200 ->
      api.parse_paged_data_response(response, decode.list(system.decoder()))
    _ -> api.parse_error_response(response)
  }
}

pub fn get_system(
  token: AgentToken,
  system_symbol: SystemSymbol,
) -> ApiResponse(System) {
  let request =
    api.get(
      AgentAuth(token),
      "/systems/" <> system_symbol.to_string(system_symbol),
    )
  use response <- api.try_send(request)
  case response.status {
    200 -> api.parse_data_response(response, system.decoder())
    _ -> api.parse_error_response(response)
  }
}

pub fn list_system_waypoints(
  token: AgentToken,
  system_symbol: SystemSymbol,
  page: Option(Int),
  limit: Option(Int),
  type_: Option(WaypointType),
  traits: List(WaypointTraitSymbol),
) -> ApiResponse(PagedData(List(Waypoint))) {
  let query =
    list.map(traits, fn(trait) {
      #("traits", waypoint_trait_symbol.to_string(trait))
    })
  let query = case type_ {
    option.Some(type_) -> [#("type", waypoint_type.to_string(type_)), ..query]
    option.None -> query
  }
  let request =
    api.get_page_with_query(
      AgentAuth(token),
      "/systems/" <> system_symbol.to_string(system_symbol) <> "/waypoints",
      page,
      limit,
      query,
    )
  use response <- api.try_send(request)
  case response.status {
    200 ->
      api.parse_paged_data_response(response, decode.list(waypoint.decoder()))
    _ -> api.parse_error_response(response)
  }
}

pub fn get_waypoint(
  token: AgentToken,
  system_symbol: SystemSymbol,
  waypoint_symbol: WaypointSymbol,
) -> ApiResponse(Waypoint) {
  let request =
    api.get(
      AgentAuth(token),
      "/systems/"
        <> system_symbol.to_string(system_symbol)
        <> "/waypoints/"
        <> waypoint_symbol.to_string(waypoint_symbol),
    )
  use response <- api.try_send(request)
  case response.status {
    200 -> api.parse_data_response(response, waypoint.decoder())
    _ -> api.parse_error_response(response)
  }
}

pub fn get_construction_site(
  token: AgentToken,
  system_symbol: SystemSymbol,
  waypoint_symbol: WaypointSymbol,
) -> ApiResponse(Construction) {
  let request =
    api.get(
      AgentAuth(token),
      "/systems/"
        <> system_symbol.to_string(system_symbol)
        <> "/waypoints/"
        <> waypoint_symbol.to_string(waypoint_symbol)
        <> "/construction",
    )
  use response <- api.try_send(request)
  case response.status {
    200 -> api.parse_data_response(response, construction.decoder())
    _ -> api.parse_error_response(response)
  }
}

pub type ConstructionSiteSupplied {
  ConstructionSiteSupplied(construction: Construction, cargo: ShipCargo)
}

pub fn supply_construction_site(
  token: AgentToken,
  system_symbol: SystemSymbol,
  waypoint_symbol: WaypointSymbol,
  ship_symbol: ShipSymbol,
  trade_symbol: TradeSymbol,
  units: Int,
) -> ApiResponse(ConstructionSiteSupplied) {
  let request =
    api.post_json(
      AgentAuth(token),
      "/systems/"
        <> system_symbol.to_string(system_symbol)
        <> "/waypoints/"
        <> waypoint_symbol.to_string(waypoint_symbol)
        <> "/construction/supply",
      json.object([
        #("shipSymbol", ship_symbol.encode(ship_symbol)),
        #("tradeSymbol", trade_symbol.encode(trade_symbol)),
        #("units", json.int(units)),
      ]),
    )
  use response <- api.try_send(request)
  case response.status {
    201 ->
      api.parse_data_response(response, {
        use construction <- decode.field("construction", construction.decoder())
        use cargo <- decode.field("cargo", ship_cargo.decoder())
        decode.success(ConstructionSiteSupplied(construction:, cargo:))
      })
    _ -> api.parse_error_response(response)
  }
}

pub fn get_market(
  token: AgentToken,
  system_symbol: SystemSymbol,
  waypoint_symbol: WaypointSymbol,
) -> ApiResponse(Market) {
  let request =
    api.get(
      AgentAuth(token),
      "/systems/"
        <> system_symbol.to_string(system_symbol)
        <> "/waypoints/"
        <> waypoint_symbol.to_string(waypoint_symbol)
        <> "/market",
    )
  use response <- api.try_send(request)
  case response.status {
    200 -> api.parse_data_response(response, market.decoder())
    _ -> api.parse_error_response(response)
  }
}

pub fn get_jump_gate(
  token: AgentToken,
  system_symbol: SystemSymbol,
  waypoint_symbol: WaypointSymbol,
) -> ApiResponse(JumpGate) {
  let request =
    api.get(
      AgentAuth(token),
      "/systems/"
        <> system_symbol.to_string(system_symbol)
        <> "/waypoints/"
        <> waypoint_symbol.to_string(waypoint_symbol)
        <> "/jump-gate",
    )
  use response <- api.try_send(request)
  case response.status {
    200 -> api.parse_data_response(response, jump_gate.decoder())
    _ -> api.parse_error_response(response)
  }
}

pub fn get_shipyard(
  token,
  system_symbol,
  waypoint_symbol,
) -> ApiResponse(Shipyard) {
  let request =
    api.get(
      AgentAuth(token),
      "/systems/"
        <> system_symbol
        <> "/waypoints/"
        <> waypoint_symbol
        <> "/shipyard",
    )
  use response <- api.try_send(request)
  case response.status {
    200 -> api.parse_data_response(response, shipyard.decoder())
    _ -> api.parse_error_response(response)
  }
}