package com.recipeapp.planning;

import com.recipeapp.common.RequiresHouseholdRole;
import com.recipeapp.planning.dto.*;
import com.recipeapp.recipe.HouseholdResolver;
import jakarta.validation.Valid;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.security.Principal;
import java.time.LocalDate;
import java.util.List;
import java.util.UUID;

@RestController
@RequestMapping("/v1/week-plans")
public class WeekPlanController {

    private final PlanningService planningService;
    private final HouseholdResolver householdResolver;

    public WeekPlanController(PlanningService planningService, HouseholdResolver householdResolver) {
        this.planningService = planningService;
        this.householdResolver = householdResolver;
    }

    @GetMapping
    public WeekPlanResponse getWeekPlan(Principal principal, @RequestParam LocalDate weekStart) {
        UUID householdId = householdResolver.resolve(principal.getName());
        return planningService.getWeekPlan(householdId, weekStart);
    }

    @PostMapping
    public ResponseEntity<WeekPlanResponse> createWeekPlan(
            Principal principal,
            @Valid @RequestBody CreateWeekPlanRequest request) {
        UUID householdId = householdResolver.resolve(principal.getName());
        WeekPlanResponse response = planningService.createWeekPlan(householdId, request.weekStart());
        return ResponseEntity.status(HttpStatus.CREATED).body(response);
    }

    @PostMapping("/{id}/slots")
    @RequiresHouseholdRole("planner")
    public ResponseEntity<SlotResponse> addSlot(
            Principal principal,
            @PathVariable UUID id,
            @Valid @RequestBody CreateSlotRequest request) {
        UUID householdId = householdResolver.resolve(principal.getName());
        SlotResponse response = planningService.addSlot(householdId, id, request);
        return ResponseEntity.status(HttpStatus.CREATED).body(response);
    }

    @PatchMapping("/{planId}/slots/{slotId}")
    @RequiresHouseholdRole("planner")
    public SlotResponse updateSlot(
            Principal principal,
            @PathVariable UUID planId,
            @PathVariable UUID slotId,
            @Valid @RequestBody UpdateSlotRequest request) {
        UUID householdId = householdResolver.resolve(principal.getName());
        return planningService.updateSlot(householdId, planId, slotId, request);
    }

    @DeleteMapping("/{planId}/slots/{slotId}")
    @ResponseStatus(HttpStatus.NO_CONTENT)
    @RequiresHouseholdRole("planner")
    public void deleteSlot(
            Principal principal,
            @PathVariable UUID planId,
            @PathVariable UUID slotId) {
        UUID householdId = householdResolver.resolve(principal.getName());
        planningService.deleteSlot(householdId, planId, slotId);
    }

    @PostMapping("/{id}/confirm")
    public WeekPlanResponse confirmPlan(Principal principal, @PathVariable UUID id) {
        UUID householdId = householdResolver.resolve(principal.getName());
        return planningService.confirmPlan(householdId, id);
    }

    @GetMapping("/{id}/suggestions")
    public SuggestionResponse getSuggestions(
            Principal principal,
            @PathVariable UUID id,
            @RequestParam LocalDate slotDate,
            @RequestParam(required = false) List<String> tags,
            @RequestParam(required = false) Integer topN) {
        UUID householdId = householdResolver.resolve(principal.getName());
        return planningService.getSuggestions(householdId, id, slotDate,
                tags != null ? tags : List.of(), topN);
    }

    @GetMapping("/{id}/variety-score")
    public VarietyScoreResponse getVarietyScore(Principal principal, @PathVariable UUID id) {
        UUID householdId = householdResolver.resolve(principal.getName());
        return planningService.getVarietyScore(householdId, id);
    }

    @GetMapping("/{planId}/variety-preview")
    @RequiresHouseholdRole("member")
    public VarietyPreviewResponse getVarietyPreview(
            Principal principal,
            @PathVariable UUID planId,
            @RequestParam UUID recipeId,
            @RequestParam LocalDate date) {
        UUID householdId = householdResolver.resolve(principal.getName());
        return planningService.getVarietyPreview(householdId, planId, recipeId, date);
    }
}